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ser-zykov [4K]
2 years ago
15

Rotate point B about point F 288 degrees clockwise

Mathematics
1 answer:
algol [13]2 years ago
6 0

When a shape is rotated, it must be rotated through a point

The new position of point B is point A

The angle of rotation is given as:

Angle = 288^o

The shape is a regular pentagon (with 5 sides).

The smallest angle of rotation that maps the pentagon onto itself is calculated using:

\theta = \frac{360}n

So, we have:

\theta = \frac{360}5

\theta = 72

Let the number of rotations be n.

So, we have:

\theta \times n= Angle

This gives

72 \times n= 288

Divide both sides by 72

n= 4

This means that the new position of B is 4 points away from B.

Point A is 4 points away from B, in clockwise direction

Hence, the new position of point B is point A

Read more about rotation at:

brainly.com/question/2283733

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Answer: Mean = 7.8

              Median = 9

             Mode = 2,9

Step-by-step explanation: <u>Mean</u> is the average value of a data set. Mean from a frequency table is calculated as:

E(X)=\frac{2(10)+3(9)+9(10)+11(7)+12(3)+15(4)+16(3)}{10+9+10+7+3+4+3}

E(X) = 7.8

Mean for the given frequency distribtuion is 7.8.

<u>Median</u> is the central term of a set of numbers. Median in a frequency table is calculated as:

1) Find total number, n:

n = 10 + 9 + 10 + 7 + 3 + 4 + 3 = 46

2) Find position, using: \frac{n+1}{2}

\frac{n+1}{2}=\frac{47}{2} = 23.5

Median is in the 23.5th position.

3) Find the position by adding frequencies: for this frequency distribution, 23.5th position is 9

Median for this frequency distribution is 9.

<u>Mode</u>  is the number or value associated with the highest frequency.

In this frequency distribution, 2 and 9 points happen 10 times. So, mode is 2 and 9.

Mode for this distribution is 2 and 9.

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3 years ago
Cuál es el resultado
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Step-by-step explanation:

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8/5 minutes. Is the answer
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3 years ago
Juan, Mary, Celia, and Mark work as information specialists at a high tech company. They each spent a certain amount of time fix
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Answer:

B) 18%

Step-by-step explanation:

100% - 36% - 29% - 17% = 18%

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lys-0071 [83]

Answer:

Groups of 12, Groups of 4, Groups of 6, Groups of 18

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12 x 3 = 36

36 splits evenly into 12, 4, 6, and 18 therefore that is your answer.

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